At 0958 hours, while the Career day shift crews were taking advantage of the unseasonably warm temperatures and washing the Ambulances outside the rear of the firehouse, a horrendous explosion was heard in the area. After a quick recovery, the EMS staff noticed a two vehicle collision in the 400 block of Market Street. The crew notified the Chester County Fire Radio and responded. This alerted the Union Fire Company No. 1 and Medic 94 (SCCEMS).

Upon arrival, it was determined that one vehicle had struck three utility poles along Market Street and a parked car in a driveway just south of Fourth Street. After a scene size-up, a single occupant was found still in the striking vehicle and extrication would be needed.

Deputy 21 (Obenchain) arrived and established the "Market Street Command".

Rescue 21 (LT. Greene) arrived and nosed into the scene. The crew split with half stabilizing the vehicle and the other half setting up the hydraulic rescue tools. The crew worked to open the driver's door.